The game works almost perfectly on v0.8.1-1156 build...blank screen does not appear, but still there is no change for special video and sometimes letters dispear for a second...got no images..sorry =(
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I try working on the last version aviable on google play store, it worked fine... with this configuration:Graphics:
Mode-Non Buff(I preferred better images)
Frameskippink-Off
GoW(fps 60)-Checked
Alternative Speed-Unlimited
Every feature uncheked
Perfomance all uncheked(1xPSP)
Texture scaling
Upscale-Off
Upscale type-xBRZ
Deposterize-Checked
Texture Filtering
Anisotropic filtering-Off
Texture filter-Linear on FMV
Hack Setting all unchecked except Disable alpha test

No software rendering
Sytem
Fast memory-Checked
Multithreaded-Checked

From Groovy Tunes:
Anime episode shows okPlay all songs except OVERMASTER
From Funky Note:Anime tends to get a frozen image... if you countinously press start you can make it playable(Slight chance too)No song is playable but you can make them a viable by continuously pressing start between you choose the song and the video start playing.
There is a slight change of getting a frozen image and no music every time you play a song, but it is pretty little.
From Honey Sound:
Have not tested...
DLC-The World is all one!!:It plays perfectly, no need to press start in any game and play just the normal MC.

Tested from my cellphone - Huawei G610...Runs without lags..Some videos run from their Normal MC and some from their sepcial video

Just for the sake of pointing it out: the issue with the videos was fixed.

The game is supposed to use a certain video during gameplay and, should the player fill their energy gauge, switch to a "special" video. Before, it played the "special" video all time, even in Teather Mode, but this is now fixed, making the game 100% playable.

As proof, an image of the normal video of the song "Yakusoku":

Now, there is still an issue, but it's not gameplay-related, it's that the emulator cannot render the ♪ character, so it shows a _. It appears twice in the lyrics of the song "MUSIC♪", once in one character's dialogue (Kotori Otonashi in the tutorial) and in the name of 26 items of the in-game store:

Um...i kinda need help here.
When playing song,the moment switch to 'special' video the whole game lag on me making me miss a lot of note(my fc ;w;).
Currently experience this on Groovy Tune version,haven't try the other two yet.
Any tips or ppsspp setting should i change?